Let's roll up our sleeves and solve this. We have 233 and we're going to multiply it by 45, essentially adding 233 to itself 45 times.
Step 1: 0 + 233 = 233
Step 2: 233 + 233 = 466
Step 3: 466 + 233 = 699
Step 4: 699 + 233 = 932
Step 5: 932 + 233 = 1165
Step 6: 1165 + 233 = 1398
Step 7: 1398 + 233 = 1631
Step 8: 1631 + 233 = 1864
Step 9: 1864 + 233 = 2097
Step 10: 2097 + 233 = 2330
Step 11: 2330 + 233 = 2563
Step 12: 2563 + 233 = 2796
Step 13: 2796 + 233 = 3029
Step 14: 3029 + 233 = 3262
Step 15: 3262 + 233 = 3495
Step 16: 3495 + 233 = 3728
Step 17: 3728 + 233 = 3961
Step 18: 3961 + 233 = 4194
Step 19: 4194 + 233 = 4427
Step 20: 4427 + 233 = 4660
Step 21: 4660 + 233 = 4893
Step 22: 4893 + 233 = 5126
Step 23: 5126 + 233 = 5359
Step 24: 5359 + 233 = 5592
Step 25: 5592 + 233 = 5825
Step 26: 5825 + 233 = 6058
Step 27: 6058 + 233 = 6291
Step 28: 6291 + 233 = 6524
Step 29: 6524 + 233 = 6757
Step 30: 6757 + 233 = 6990
Step 31: 6990 + 233 = 7223
Step 32: 7223 + 233 = 7456
Step 33: 7456 + 233 = 7689
Step 34: 7689 + 233 = 7922
Step 35: 7922 + 233 = 8155
Step 36: 8155 + 233 = 8388
Step 37: 8388 + 233 = 8621
Step 38: 8621 + 233 = 8854
Step 39: 8854 + 233 = 9087
Step 40: 9087 + 233 = 9320
Step 41: 9320 + 233 = 9553
Step 42: 9553 + 233 = 9786
Step 43: 9786 + 233 = 10019
Step 44: 10019 + 233 = 10252
Step 45: 10252 + 233 = 10485

So, 233*45 = 10485